I'm new to Lightroom. I'd like to import the photos on my iPhone into Lightroom, which I took using the iPhone camera, so the photos are all part of the Camera Roll in Photos. Does Lightroom keep track of which photos I download, even if I don't delete the photos? In other words, I'd like to keep those photos on my iPhone and download them into Lightroom - will Lightroom keep track of which photos I've downloaded into Lightroom and which ones I haven't?
Going forward, if I'm going to transfer photos from my iPhone to Lightroom, is it better to take pictures using the Lightroom Mobile app, or should I continue to use the iPhone Photos/Camera option?